Setting up a new installation

flash latest Raspian OS image light
resize sd-card space with gparted to maximum size
boot raspberry pi
define keyboard layout
add user aaa and set password
perform sudo apt update && sudo apt upgrade
perform sudo apt install lightdm vim i3-wm dmenu x11-xserver-utils git build-essentials cmake libserial-dev gpiod libgpiod-dev
Sudo raspi-config > Interface Options
- (+) SSH
- (+) I2C
Sudo raspi-config > System-Settings > Hostname
- a3-motion-v02
sudo vim /etc/hosts
- make sure hostname is correct
sudo groupadd autologin
sudo usermod -aG autologin aaa
sudo vim /etc/lightdm/lightdm.conf

[Seat:*]
xserver-command=X -nocursor
autologin-user=aaa
autologin-session=i3

sudo systemctl set-default graphical.target
sudo systemctl enable lightdm
configure autostart at the end of ~/.config/i3/config
- remove bar {} block
- rotate display for portrait orientation
- rotate mouse input coordinates
- disable screen saver and screen power management
- start motion controller ui

exec --no-startup-id xrandr -o right
exec --no-startup-id xinput set-prop "wch.cn USB2IIC_CTP_CONTROL" --type=float "Coordinate Transformation Matrix" 0 1 0 -1 0 1 0 0 1

exec --no-startup-id xset s off
exec --no-startup-id xset -dpms

exec sleep 1

exec /usr/bin/bash /home/aaa/a3-system/a3motion/a3MotioncontrollerUI/moc.sh --serial_device /dev/ttyACM0 --server_ip "192.168.43.50" --server_port 9000 --encoder_base_port 1337

configure network: vim /etc/dhcpcd.conf

# Example static IP configuration:
interface eth0
static ip_address=192.168.43.52/24
static routers=192.168.43.1
static domain_name_servers=192.168.43.1 8.8.8.8

git clone --recursive https://github.com/a3-audio/a3-motion.git
build a3-motion-ui
- see a3motion/ui/readme.md

set up kernel config (TODO: what was changed compared to stock installation?)

#gpu_mem=64
initramfs initramfs-linux.img followkernel
kernel=kernel8.img
arm_64bit=1
disable_overscan=1
dtparam=krnbt=on

#enable sound
dtparam=audio=on
#hdmi_drive=2

#enable vc4
dtoverlay=vc4-kms-v3d
max_framebuffers=2
disable_splash=1

display_rotate=2

Branching in Git

Development of the upcoming hardware version and the corresponding software happens on the main branch. We keep "release branches" for each successive hardware build to allow for hotfixes. When features are developed on a release branch, e.g. because the upcoming hardware is not ready to be used yet, they have to be ported forward into the main branch.

a3-audio/a3-motion

Setting up a new installation

Branching in Git